CHC Navigation - Marine Survey

23/10/2026

22/10/2026

🌊Shallow water, fast currents, narrow channel?
Challenge accepted! 💪

In Brussels, Belgium, our HN-400M MBES captured water depth distribution, riverbed morphology, and cross-sectional data for underwater topographic mapping.

Clear contours and reliable data provide a solid foundation for subsequent filling and excavation analysis.

Mission: Complete. Click to see how it’s done. 🎬👇️

16/10/2026

Friday calls for something worth exploring. 👀

Why not take a quick underwater 3D tour of a bridge collapse site — and see how CHCNAV APACHE 4 Pro USV + HN-400M MBES helped locate submerged wreckage?

📊 Survey Conditions:
Complex submerged debris field — twisted steel structures and concrete sections
High risk for divers; underwater conditions previously unclear

⚙️ Equipment in Action:

🚤 APACHE 4 Pro USV
Remote-controlled operation — no need for divers to enter the water, completed in just 30 minutes

📡 HN-400M MBES
Dual-frequency 400 / 550 kHz with FM CHIRP, delivering high-resolution data for complex underwater structures

🚤 Field Performance:
✅ High-density 3D point cloud clearly reconstructed the submerged wreckage
✅ Twisted steel beams and structural fragments fully resolved
✅ Enabled intuitive, data-backed decision-making for salvage operations

From "divers in the water" to "USV surveying the wreckage" — technology makes underwater emergency response faster and safer.

Hit play for a closer look. 🎥

15/10/2026

Survey conditions can change fast, but the CHCNAV APACHE 4 Pro USV is built to keep up. 🚤

Built with high-strength, high-modulus carbon fiber and HPT one-piece molding, its hull combines strength with a lighter structure for demanding field conditions.

🔹 60% better impact resistance
🔹 30% lower hull weight
🔹 Strong, collision-resistant hull for reliable operation

As a multi-purpose USV, the APACHE 4 Pro supports a wide range of hydrological applications across diverse water environments.

👉 Explore more here: https://geospatial.chcnav.com/products/chcnav-apache-4-pro

08/10/2026

Point by Point. Beat by Beat. HN-400M at a Ship Lock in Belgium.

Regular underwater inspections are essential for safe navigation, especially in areas prone to sediment accumulation and erosion, such as approach channels and the bottom of the lock chamber.

This time, we’re letting the 3D results do the talking. 👀

Explore more: https://geospatial.chcnav.com/products/chcnav-hn-400m

06/10/2026

🚤 Marine Minute #03 | How Do We Measure Water?

Marine Minute is back! This time, we’re taking a closer look at the fundamentals of hydrographic surveying. 🌊

Swipe through for a quick refresher on the basics and see how different survey needs shape the data we collect. 👇️

02/10/2026

Friday calls for something worth exploring. 👀

Why not take a quick underwater 3D tour of a reservoir's terraced terrain with CHCNAV APACHE 4 Pro + HN-400M MBES?

📊 Survey Conditions:
Reservoir with stepped, terraced underwater terrain
Maximum water depth: ~30 m
Significant depth variations and slope transitions

⚙️ Equipment in Action:
🚤 APACHE 4 Pro USV
Ultra-shallow draft for flexible operation in shallow and nearshore zones
📡 HN-400M MBES
Dual-frequency 400 / 550 kHz, delivering high-resolution data across varying depths

🚤 Field Performance:
✅ APACHE 4 Pro – operates flexibly across shallow and deeper areas
✅ HN-400M – captures terraced terrain contours with exceptional clarity
✅ Distinct terrace edges, slope transitions, and elevation changes clearly resolved

From shallow shelves to deeper channels — every terrace, clearly mapped

Hit play for a closer look. 🎥

30/09/2026

How can we track where large rocks move underwater and where they finally settle?🤔

In this project in Saxony, Germany, our HN-400M MBES supported targeted inspection with detailed 3D visualization.

Combined with EasySail software, real-time point cloud data helped reveal underwater structures and quickly identify abnormal areas for closer inspection.

Here's the details🙌

28/09/2026

🚤Different waters? Bring them on, our D60 is ready.

CHCNAV D60 Dual-Frequency Echo Sounder brings multiple capabilities together for reliable surveying across diverse water conditions:

🔹 200 kHz + 33 kHz dual frequencies for reliable bathymetric data
🔹 Strong signal pe*******on for turbid waters and rapid depth changes
🔹 Integrated IMU with 100 Hz sampling rate for motion compensation and improved measurement accuracy

Dual frequencies. Multiple capabilities. D60 knows how to keep up.😎

Explore more: https://geospatial.chcnav.com/products/chcnav-D60

25/09/2026

Friday calls for something worth exploring. 👀

Why not take a quick underwater look at bridge pier inspection with CHCNAV APACHE 4 Pro USV + HN-400M MBES?

📊 Survey Conditions:
River channel with complex bridge pier structures
Shallow water and tight clearance around piers — difficult for conventional vessels
Requirement: detailed pier condition and scour assessment

🚤 Field Performance:
✅ APACHE 4 Pro USV – shallow draft, manoeuvrable, easily operates close to bridge piers
✅ HN-400M MBES – high-resolution data capturing pier surfaces and surrounding riverbed in detail
✅ Clear vertical faces of piers resolved — structural condition and scour patterns easy to interpret

From pier face to riverbed — every detail, clearly resolved.

Hit play for a closer look. 🎥